BJ(6)               UNIX Programmer's Manual                BJ(6)

NAME
     bj - the game of black jack

SYNOPSIS
     /usr/games/bj

DESCRIPTION
     _B_j is a serious attempt at simulating the dealer in the game
     of black jack (or twenty-one) as might be found in Reno.
     The following rules apply:

     The bet is $2 every hand.

          A player `natural' (black jack) pays $3.  A dealer
          natural loses $2.  Both dealer and player naturals is a
          `push' (no money exchange).

          If the dealer has an ace up, the player is allowed to
          make an `insurance' bet against the chance of a dealer
          natural.  If this bet is not taken, play resumes as
          normal.  If the bet is taken, it is a side bet where
          the player wins $2 if the dealer has a natural and
          loses $1 if the dealer does not.

          If the player is dealt two cards of the same value, he
          is allowed to `double'.  He is allowed to play two
          hands, each with one of these cards.  (The bet is dou-
          bled also; $2 on each hand.)

          If a dealt hand has a total of ten or eleven, the
          player may `double down'.  He may double the bet ($2 to
          $4) and receive exactly one more card on that hand.

          Under normal play, the player may `hit' (draw a card)
          as long as his total is not over twenty-one.  If the
          player `busts' (goes over twenty-one), the dealer wins
          the bet.

          When the player `stands' (decides not to hit), the
          dealer hits until he attains a total of seventeen or
          more.  If the dealer busts, the player wins the bet.

          If both player and dealer stand, the one with the larg-
          est total wins.  A tie is a push.

     The machine deals and keeps score.  The following questions
     will be asked at appropriate times.  Each question is
     answered by y followed by a new line for `yes', or just new
     line for `no'.

     ?         (means, `do you want a hit?')
     Insurance?

Printed 9/10/82                                                 1

BJ(6)               UNIX Programmer's Manual                BJ(6)

     Double down?

     Every time the deck is shuffled, the dealer so states and
     the `action' (total bet) and `standing' (total won or lost)
     is printed.  To exit, hit the interrupt key (DEL) and the
     action and standing will be printed.

Printed 9/10/82                                                 2